Nah Paul, not hard, others may do it different, but on my Gutzi, (Beeza Conical wheel has different system) I disconnect the connecting linkage and holing tongue correctly,
pull the two levers till drum contact, then with my third hand, screw the adjustable link-end (can't think the proper name), till the pin slips nicely in the hole...
...or you could undo the secondary link, and pull in the handle lever and nip up the H'bar adjuster to hold it in place while hands (2) and (3) do their stuff, thereby freeing up hand (1) to administer tongue lube...!
Good luck, and don't overdo the lube!